<template>
    <div>
        <h1>{{id?"编辑":"新建"}}广告</h1>
        <el-form label-width="80px" @submit.native.prevent = "save">
            <el-form-item label="名称">
                <el-input v-model="model.name"></el-input>
            </el-form-item>
            <el-form-item label="广告">
                 <el-button icon="el-icon-plus" type="text" @click="model.items.push({})">添加技能</el-button>
                    <el-row type="flex" style="flex-wrap:wrap;" class="nextForm">
                        <el-col :md="24" v-for="(item,index) in model.items" :key="index">
                            <el-form-item label="广告URL" style="margin-top:1rem">
                                <el-input v-model="item.url"></el-input>
                            </el-form-item>
                            <el-form-item label="广告图片" style="margin-top:1rem">
                                <el-upload
                                 class="avatar-uploader"
                                 :action="UploadUrl"
                                 :headers="authHeaderMixin"
                                 :show-file-list="false"
                                 :on-success="res=>$set(item,'image',res.url)">
                                    <img v-if="item.image" :src="item.image" class="avatar">
                                    <i v-else class="el-icon-plus avatar-uploader-icon"></i>
                                </el-upload>
                            </el-form-item>
                            <el-form-item >
                                <el-button type="danger" @click="deleteItem(index)">删除</el-button>
                            </el-form-item>
                            <el-divider content-position="right">广告-{{index+1}}</el-divider>
                        </el-col>
                    </el-row> 
            </el-form-item>
            <el-form-item>
                <el-button type="primary" native-type="submit">确认</el-button>
            </el-form-item>
        </el-form>
    </div>
</template>

<script>
    export default {
        props: {
            id:String
        },
        data () {
            return {
                model:{
                    items:[]
                },
            }
        },
        methods: {
            deleteItem(index){
                this.model.items.splice(index,1)
                this.$message({
                    message: '点击确认后将永久删除',
                    type: 'warning'
                });
            },
            async save(){
                let res
                if(this.id){
                    res = await this.$http.put(`rest/ads/${this.id}`,this.model)
                }else{
                    res = await this.$http.post("rest/ads",this.model)
                }
                
                if(res){
                    this.$router.push('/ads/list')
                    this.$message({
                        type:'success',
                        message:'保存成功'
                    })
                }
            },
            async fetch(){
                const res = await this.$http.get(`rest/ads/${this.id}`)
                if(res){
                    this.model = res.data
                }
            },
        },
        beforeRouteEnter (to, from, next) {
            console.log("00")
            next(vm=>{
                
                if(vm.id){
                    vm.fetch()
                }else{
                    vm.model = {
                        items:[]
                    }
                }
            })
        }
    }
</script>

<style>
      .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    min-width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    min-width: 178px;
    height: 178px;
    display: block;
  }
</style>